Specification: 
Waterproof Standard: IPX-3
headphone form factor: In ear
touch screen: NO
Estimated Battery Life: 3-5 hours
Charging Interface Type: TYPE-C
Battery Charging Time: 1-3 hours
material: ABS
BT Wireless: Bluetooth v5.3
wireless delay time: above 60 ms
Control Method: Touch Control
battery capacity(mah): 300mah
Impedance: 16Ω
Maximum Operating Distance: 15m
Audio Driver Type: Dynamic coil drive unit
Carrying Case Length*Width*Height: 52mm*52mm*25mm
Carrying Case Weight: 30g
Bluetooth Range: 2402MHz-2480MHz
Battery Type: Polymer lithium battery
Number of Lithium-ion Cells: 2
Battery Weight: 11g                    

 Feature:
1. Comfortable Design
· Ultra-thin and flat: The earbuds typically feature a flat, flat design to prevent pressure on the ear when sleeping on your side.
· Soft material: Soft to the touch and non-hard.
· No-sense fit: Each earbud typically weighs less than 5g. Some products feature a split design (e.g., separate earbuds for left and right ears) to reduce the risk of entanglement.
2. Optimized Safety
· No sharp edges: The smooth, rounded shape prevents scratches and pressure on the ear canal during sleep.
· Breathable design: Prevents prolonged ear canal occlusion, which can cause discomfort and bacterial growth.
3. Functional Features
· Passive noise reduction: Blocks ambient noise through a physical seal.
· Side-sleeper friendly: Either earbud can be used independently.
· Touch control: Easy operation (e.g., single-touch pause) prevents screen interruptions from disrupting sleep.
4. Technical Specifications
· Bluetooth version: The mainstream version is Bluetooth 5.3 or higher, supporting stable connection and low latency.
· Wireless charging: Some products support both storage and charging in the charging pod, eliminating the hassle of finding cables. 
5. Purchasing Recommendations
· Priority: Side sleepers should choose an ultra-thin model.
· Health Tips: Avoid prolonged use at high volume levels and clean the earbuds regularly.
· The key to sleep headphones: balancing "feel-free" with "basic functionality." Choose the right model based on your personal sleep habits (such as tossing and turning frequency and noise sensitivity).